Finding the Third Proportional to 8,424,160 and 12,320,304

Step by Step Solution

1. Step 1: Write the proportion equation
   8,424,160 : 12,320,304 = 12,320,304 : x
2. Step 2: Convert to fraction form
   8,424,160/12,320,304 = 12,320,304/x
3. Step 3: Cross multiply
   8,424,160x = 12,320,304 × 12,320,304
4. Step 4: Simplify right side
   8,424,160x = 151,789,890,652,416
5. Step 5: Solve for x
   x = 151,789,890,652,416/8,424,160
6. Step 6: Final answer
   x = 18,018,400.73